As a thumb-rule, 1 KVA UPS can support 3-4 PCs/Laptops (with TFT Monitors), simple routers/switches and a simple EPABX. Online UPS typically come in 1KVA, 2KVA,3,5 and 10 KVA and above. While planning for your UPS capacity, it's better to plan for somewhat higher capacity for future capacity.
A rubber band (also known as an elastic band, gum band or lacky band) is a loop of rubber, usually ring shaped, and commonly used to hold multiple objects together Most rubber bands are manufactured out of natural rubber or especially at larger sizes, elastomer, and are sold in a variety of sizes.
This kit contains a 100 rubberbands